UI: Fix theme issues with hotkey icons

UI/data/themes/Rachni.qss

@@ -969,6 +969,8 @@ QPushButton:checked#exitButton {
 QPushButton[themeID="addIconSmall"],
 QPushButton[themeID="removeIconSmall"],
 QPushButton[themeID="configIconSmall"],
+QPushButton[themeID="trashIcon"],
+QPushButton[themeID="revertIcon"],
 QPushButton#transitionRemove,
 QPushButton#moveAsyncFilterUp,
 QPushButton#moveAsyncFilterDown,
@@ -982,6 +984,8 @@ QPushButton#moveEffectFilterUp {
 QPushButton:hover[themeID="addIconSmall"],
 QPushButton:hover[themeID="removeIconSmall"],
 QPushButton:hover[themeID="configIconSmall"],
+QPushButton:hover[themeID="trashIcon"],
+QPushButton:hover[themeID="revertIcon"],
 QPushButton:hover#transitionRemove,
 QPushButton:hover#moveAsyncFilterUp,
 QPushButton:hover#moveAsyncFilterDown,

UI/hotkey-edit.cpp

@@ -324,6 +324,7 @@ void OBSHotkeyWidget::AddEdit(obs_key_combination combo, int idx)
 	});
 
 	QHBoxLayout *subLayout = new QHBoxLayout;
+	subLayout->setContentsMargins(0, 4, 0, 0);
 	subLayout->addWidget(edit);
 	subLayout->addWidget(revert);
 	subLayout->addWidget(clear);